[CMake] CMAKE_TOOLCHAIN_FILE / testing with 'wine'

[Mathieu Malaterre]

On Tue, Aug 19, 2008 at 10:57 PM, Hendrik Sattler
<post at hendrik-sattler.de> wrote:
> Am Dienstag, 19. August 2008 22:24:12 schrieb Mathieu Malaterre:
>>   Did you figure out a way to install 32bits debian package in the
>> /emul/ia32 subdirectory ? How did you install your target system
>> environment. On my debian box, the ia32-libs package works somewhat
>> ok, but it only provide the runtime 32bits libs (not the include file
>> for instance).
>
> The include files do not differ (they are architecture-independent) for normal
> projects. Why would you want to install a second set?

uh ? I see two issues:
1. Related to how cmake internally works:
The way cmake toolchain work is you simply set some kind of root, for
instance /emul/ia32-linux and within this root, will search for
/usr/lib/libz.so and /usr/include/zlib.h. I'll have to double check
but hopefully order is is respected so that I can say search first in
'/emul/ia32-linux' and then in '/'

anyway that's not really a problem.
2. The real problem that I am seeing is that include file are not arch
independant AFAIK. What if a project would store the result of
sizeof(long) within one of its header. I cannot simply use the same
header file when compiling with zlib.h 32bits and zlib.h 64bnits. Am I
missing something here ?

I naively assumed that for doing cross compilation I would simply have
to install the 32bits version of a particular package (zlib, uuid,
expat) within a specific root (/emul/ia32-linux for instance).

Thanks
-- 
Mathieu